Enable HP Envy 4500 ePrint Setup and Turn ON Web Services in HP Envy 4500 Printer. HP Envy 4500 Mobile Printing Setup.123.hp.com/envy4500 Printer Offers eprint Service that makes you Print from your HP Printer from any place in the World. All you need is to have an Active Internet Connection and E-print enabled Hp Envy 4500 Printers.